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llvm-project/llvm/test/Transforms
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Sanjoy Das c7f69b921f Be wary of abnormal exits from loop when exploiting UB 
We can safely rely on a NoWrap add recurrence causing UB down the road
only if we know the loop does not have a exit expressed in a way that is
opaque to ScalarEvolution (e.g. by a function call that conditionally
calls exit(0)).

I believe with this change PR28012 is fixed.

Note: I had to change some llvm-lit tests in LoopReroll, since it looks
like they were depending on this incorrect behavior.

llvm-svn: 272237
 		2016-06-09 01:13:59 +00:00
..
ADCE [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
AddDiscriminators Revert http://reviews.llvm.org/D19926 as it breaks tests. 2016-05-05 20:47:53 +00:00
AlignmentFromAssumptions Revert "Change memcpy/memset/memmove to have dest and source alignments." 2015-11-19 05:56:52 +00:00
ArgumentPromotion [ArgumentPromotion] Propagate operand bundles to promoted call sites 2016-04-29 04:56:12 +00:00
AtomicExpand ARM: use a pseudo-instruction for cmpxchg at -O0. 2016-04-18 21:48:55 +00:00
BBVectorize [BBVectorize] Don't vectorize selects with a scalar condition and vector operands. 2016-05-26 18:43:57 +00:00
BDCE [PM] Port BDCE to the new pass manager. 2016-05-25 01:57:04 +00:00
BranchFolding Move branch folding test to a better location. 2015-12-03 19:41:25 +00:00
CodeExtractor
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CodeGenPrepare [CodeGenPrepare] Don't sink a cast past its user 2016-04-27 19:36:38 +00:00
ConstProp Revert "[SCCP] Partially propagate informations when the input is not fully defined." 2016-05-11 23:06:10 +00:00
ConstantHoisting ARM: don't try to hoist constant RHS out of a division. 2016-04-15 18:17:18 +00:00
ConstantMerge [PM] Port ConstantMerge to the new pass manager. 2016-05-05 00:51:09 +00:00
CorrelatedValuePropagation Remove extra whitespace. NFC. 2016-05-02 16:45:00 +00:00
CrossDSOCFI [cfi] Cross-DSO CFI diagnostic mode (LLVM part). 2016-01-25 23:35:03 +00:00
DCE Mark guards on true as "trivially dead" 2016-04-29 22:23:16 +00:00
DeadArgElim [IR] Copy comdats in GlobalObject::copyAttributesFrom 2016-05-25 18:36:22 +00:00
DeadStoreElimination [PM] Port DSE to the new pass manager 2016-05-17 21:38:13 +00:00
EarlyCSE [EarlyCSE] Simplify guard intrinsics 2016-04-29 21:52:58 +00:00
EliminateAvailableExternally [PM] Port EliminateAvailableExternally pass to the new pass manager. 2016-05-05 02:37:32 +00:00
Float2Int [Float2Int] Don't operate on vector instructions 2015-12-09 21:08:18 +00:00
ForcedFunctionAttrs [attrs] Split off the forced attributes utility into its own pass that 2015-12-27 08:13:45 +00:00
FunctionAttrs [CaptureTracking] Volatile operations capture their memory location 2016-05-26 17:36:22 +00:00
FunctionImport ThinLTO: do not import function whose linkage prevents inlining. 2016-05-03 00:27:28 +00:00
GCOVProfiling [PM] Port GCOVProfiler pass to the new pass manager 2016-06-05 05:12:23 +00:00
GVN [GVN] Preserve !range metadata when PRE'ing loads 2016-05-27 19:03:10 +00:00
GlobalDCE [GlobalDCE, Misc] Don't remove functions referenced by ifuncs 2016-05-04 00:20:48 +00:00
GlobalMerge CodeGen: Make the global-merge pass independently testable, and add a test. 2016-05-19 04:38:56 +00:00
GlobalOpt Make "@name =" mandatory for globals in .ll files. 2016-05-10 18:22:45 +00:00
GuardWidening [GuardWidening] Fix incorrect use of remove_if 2016-05-21 02:24:44 +00:00
IPConstantProp [PM] Port Interprocedural SCCP to the new pass manager. 2016-05-05 21:05:36 +00:00
IRCE [IRCE] Optimize conjunctions of range checks 2016-05-26 00:09:02 +00:00
IndVarSimplify [PM] Port IndVarSimplify to the new pass manager 2016-06-05 18:01:19 +00:00
InferFunctionAttrs [TLI] Also cover Linux 64 libfunc (stat64, ...) prototype checking. 2016-05-25 21:16:33 +00:00
Inline Allow -inline-threshold to override default threshold. 2016-05-19 23:02:09 +00:00
InstCombine [InstCombine][AVX2] Add support for simplifying AVX2 per-element shifts to native shifts 2016-06-07 10:27:15 +00:00
InstMerge [MergedLoadStoreMotion] Don't transform across may-throw calls 2016-05-26 07:11:09 +00:00
InstSimplify [ValueTracking, InstSimplify] extend isKnownNonZero() to handle vector constants 2016-05-24 14:18:49 +00:00
Internalize [Internalize] Test that __stack_chk_{guard, fail} are not internalized. 2016-06-05 19:08:54 +00:00
JumpThreading [ValueTracking] Improve isImpliedCondition when the dominating cond is false. 2016-04-25 17:23:36 +00:00
LCSSA Use FileCheck instead of grepping for patterns. NFC. 2016-06-07 21:46:14 +00:00
LICM LICM: Don't sink stores out of loops that may throw. 2016-06-05 22:13:52 +00:00
LoadCombine
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LoopDataPrefetch [LoopDataPrefetch] Add optimization remark 2016-05-05 00:08:15 +00:00
LoopDeletion Use all_of instead of a raw loop; NFC 2016-05-03 17:50:06 +00:00
LoopDistribute [LoopDist] Add missing RUN line in test from r268006 2016-04-29 07:16:00 +00:00
LoopIdiom AMDGPU: Other sizes of popcnt are fast 2016-05-18 16:10:19 +00:00
LoopInterchange
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LoopLoadElim [LLE] Check for mismatching types between the store and the load earlier 2016-03-24 17:59:26 +00:00
LoopReroll Be wary of abnormal exits from loop when exploiting UB 2016-06-09 01:13:59 +00:00
LoopRotate LPM: Drop require<loops> from these tests, it's redundant. NFC 2016-05-10 18:28:10 +00:00
LoopSimplify [LoopSimplify] Preserve LCSSA when merging exit blocks. 2016-06-08 23:13:21 +00:00
LoopSimplifyCFG LPM: Drop require<loops> from these tests, it's redundant. NFC 2016-05-10 18:28:10 +00:00
LoopStrengthReduce Reapply [LSR] Create fewer redundant instructions. 2016-06-06 19:10:46 +00:00
LoopUnroll The patch set unroll disable pragma when unroll 2016-06-08 20:21:24 +00:00
LoopUnswitch [SimlifyCFG] Prevent passes from destroying canonical loop structure, especially for nested loops 2016-03-29 04:08:57 +00:00
LoopVectorize Quick fix for the test from rL272014 "[LAA] Improve non-wrapping pointer 2016-06-07 15:52:35 +00:00
LoopVersioning [LVers] Change CHECK_LABEL to CHECK-LABEL (underscore->dash) 2016-03-28 21:04:13 +00:00
LoopVersioningLICM [LoopVersioningLICM] Add test coverage for llvm.loop.licm_versioning.disable 2016-04-22 18:34:50 +00:00
LowerAtomic [PM] Port LowerAtomic to the new pass manager. 2016-05-13 22:52:35 +00:00
LowerBitSets [cfi] Support explicit sections for functions in cfi-icall. 2016-04-15 22:55:38 +00:00
LowerExpectIntrinsic [LowerExpectIntrinsic] make default likely/unlikely ratio bigger 2016-04-26 22:23:38 +00:00
LowerGuardIntrinsic [Guards] Add branch metadata when lowering 2016-05-17 17:51:19 +00:00
LowerInvoke
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LowerSwitch Have a single way for creating unique value names. 2015-11-22 00:16:24 +00:00
Mem2Reg [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
MemCpyOpt [MemCpyOpt] Do not exchange llvm.lifetime.start and llvm.memcpy 2016-06-08 19:42:32 +00:00
MergeFunc Fix a crash in MergeFunctions related to ordering of weak/strong functions 2016-05-31 17:20:23 +00:00
MetaRenamer Revert "Change memcpy/memset/memmove to have dest and source alignments." 2015-11-19 05:56:52 +00:00
NameAnonFunctions Add a pass to name anonymous/nameless function 2016-04-12 21:35:28 +00:00
NaryReassociate [NaryReassociate] allow candidate to have a different type 2015-12-18 21:36:30 +00:00
ObjCARC Form objc_storeStrong in the presence of bitcasts. 2016-05-27 02:13:53 +00:00
PGOProfile [profile] value profiling bug fix -- missing icall targets in profile-use 2016-06-02 16:33:41 +00:00
PartiallyInlineLibCalls [PM] Port PartiallyInlineLibCalls to the new pass manager. 2016-05-25 23:38:53 +00:00
PhaseOrdering Mark that SpeculativeExecution preserves Globals Alias Analysis. 2016-05-03 08:33:26 +00:00
PlaceSafepoints [PlaceSafepoints] Clamp NoStatepoints to true 2016-01-28 21:51:14 +00:00
PreISelIntrinsicLowering Introduce llvm.load.relative intrinsic. 2016-04-22 21:18:02 +00:00
PruneEH [PruneEH] Don't try to insert a terminator after another terminator 2016-01-23 06:00:44 +00:00
Reassociate PM: Port Reassociate to the new pass manager 2016-04-26 23:39:29 +00:00
Reg2Mem
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RewriteStatepointsForGC [RewriteStatepointsForGC] All constant should have null base pointer 2016-05-27 13:13:59 +00:00
SCCP [PM] Port per-function SCCP to the new pass manager. 2016-05-18 15:18:25 +00:00
SLPVectorizer [SLPVectorizer] Handle GEP with differing constant index types 2016-06-08 21:55:16 +00:00
SROA [SROA] Function canConvertValue needs to check whether both NewTy and OldTy pointers are 2016-05-03 19:30:48 +00:00
SafeStack DebugInfo: Remove MDString-based type references 2016-04-23 21:08:00 +00:00
SampleProfile [PM] Port the Sample FDO to new PM (part-2) 2016-05-27 23:20:16 +00:00
ScalarRepl [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
Scalarizer [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
SeparateConstOffsetFromGEP [ValueTracking] Remove dead code from an old experiment 2016-03-03 19:44:06 +00:00
SimplifyCFG [SimplifyCFG] Don't kill empty cleanuppads with multiple uses 2016-06-04 23:50:03 +00:00
Sink PM: Port SinkingPass to the new pass manager 2016-04-22 19:54:10 +00:00
SpeculativeExecution Move divergent-target test into CodeGen/NVPTX because it requires an NVPTX target. 2016-04-15 01:20:52 +00:00
StraightLineStrengthReduce
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StripDeadPrototypes [PM] Port StripDeadPrototypes to the new pass manager 2015-10-30 23:28:12 +00:00
StripSymbols Refactor stripDebugInfo(Function) to handle intrinsic 2016-05-07 04:10:52 +00:00
StructurizeCFG AMDGPU: Remove leftover ShaderType attributes in tests 2016-04-13 00:39:48 +00:00
TailCallElim Push isDereferenceableAndAlignedPointer down into isSafeToLoadUnconditionally 2016-01-17 12:35:29 +00:00
Util [MemorySSA] Port to new pass manager 2016-06-01 21:30:40 +00:00
WholeProgramDevirt WholeProgramDevirt: introduce. 2016-02-09 22:50:34 +00:00